Servo motor is a kind of motor, which occupies an important position in the composition of automation equipment. Its functions are:
The servo motor can convert the voltage signal into torque and speed to drive the control object, can control the speed, and the position accuracy is very accurate. The rotor speed of the motor is controlled by the input signal and can respond quickly. In the automatic control system, it is used as an executive element, and has the characteristics of small electromechanical time constant, high linearity, starting voltage, etc., which can convert the received electrical signal. Converted to angular displacement or angular velocity output on the motor shaft.
Compared with ordinary motors, the response speed of servo motors is fast. In the moving occasions of point-to-point fast positioning, servo control technology can provide large torque output, which makes the system have extremely high dynamic response, which greatly surpasses the motor.
Servo motors have high running accuracy and output torque accuracy, and are mainly used in equipment that requires relatively high process accuracy, processing efficiency and work reliability, such as:
1. Machinery industry: machining centers, CNC punching machines, bending machines, shearing machines, PLC program controllers, various types of automotive testing equipment, assembly equipment, and welding equipment.
2. Printing industry: drying machine, printing machine, offset printing machine, rotary machine, laser phototypesetting, proofing equipment, automatic punching machine, inkjet printer; folding machine, paper cutter, sewing machine, glue binding machine, automatic Corrugated cardboard (box) production line automatic paper feeding and gluing machine, computer three-side bag sealing machine, shaftless high-speed offset printing machine, etc.
3. Medical industry: monitors, ultrasound machines, CT control boxes, electrocardiogram (EEG) testers, X-ray machines, slicers, hemodialysis machines, temperature controllers, etc. 4. Food industry: sterilizer, homogenizer, labeling machine, can making machine, flow controller, sealing machine, packaging machine, coffee machine, etc.
5. Rubber tire industry: steel wire belt production line, inner lining extrusion production line, steel wire calender, double compound extruder, steel cord cutting machine, heavy internal mixer, radial tire wire machine, etc.
6. Elevator industry: door] control and floor control of various elevators.

A servo motor is a rotary or linear actuator that allows precise control of angular velocity or the position, velocity and acceleration of a wire. It includes a suitable motor connected to the sensor for position feedback. It also requires a relatively complex controller, usually a dedicated module specifically designed for use with servo motors, although the term "servo motor" is often used to refer to motors suitable for closed-loop control systems, servo motors are not a specific motor category.
A servo motor is a closed-loop servo mechanism that uses position feedback to control its motion and final position. A control input​​ is a signal (analog or digital) that represents the commanded position of the output shaft.
The motor is paired with some type of position encoder to provide position and velocity feedback. In the simplest case, only the position is measured. Compare the measured output position with the commanded position (external input to the controller). If the output position differs from the desired position, an error signal is generated and the motor is then rotated in either direction as required to move the output shaft into the proper position. As the position gets closer, the error signal decreases to zero and the motor stops.Servo motor is a relatively easy-to-use motor. It has the advantages of high precision, closed-loop control of position, speed and torque, no out-of-step problem, good high-speed performance, and strong anti-overload capability, and basically there are no disadvantages. , The main disadvantage is that it is not fully waterproof or oil-proof, and it is not very convenient to use in places that will be attacked by water or oil droplets.

Sichuan Amke Servo Technology Co., Ltd. is a high-tech company established on the basis of the former Sichuan Dongfang Digital Drive Co., Ltd. controlled by China Dongfang Electric Group. Since 1994, it has been engaged in the design, production and sales of AC servo systems and variable frequency motors. It has successively provided AC permanent magnet synchronous servo motors (systems) for artillery follow-up systems for naval ships. In 1995, it entered into a joint venture with German AMK, introduced German AMK AC servo motor technology, and produced DH series AC servo motors that meet AMK technical standards. Spindle motor and DV series AC asynchronous servo feed motor.
In recent years, Sichuan Aimke Servo Technology Co., Ltd. has designed the AC asynchronous servo spindle motor with exposed iron core by digesting, absorbing and innovating the imported technology, and has produced the same power in China (especially the power of 18.5KW). Above) AC asynchronous servo spindle motor with the lightest weight and smallest volume, the performance is synchronized with the international. The company's motors can be equipped with AMK original imported drives, and can also be matched with other top brand drives at home and abroad. In addition, the company has developed high-speed AC permanent magnet servo spindle motor.
The company now produces DH series AC asynchronous servo spindle motors and SD series AC asynchronous servo drives, whose product performance is at the best domestic level and synchronized with the international level. In addition, the company has developed DHS and DHSG series double base speed servo spindle motors with the same technical level as FANUC-αiIp, αiIT, αIiI (with low-speed winding, high-speed winding) series through nearly two years of technical research and development. And obtained the national patent, and developed the SDS series servo driver matched with the DHS and DHSG series two-speed servo spindle motors. The produced two-speed servo spindle motor and its supporting servo driver have been successfully used in the CNC vertical lathe of Shenyang Machine Tool Co., Ltd. The company has strong technical development strength. It has a technology research and development team with experts who enjoy the State Council allowance as scientific research leaders, and a stable and skilled workforce, which provides a strong guarantee for the company's development.

Liao Yiting

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